condition mean min max 4 h after light 1.925135 1.21035 2.63992 8 h after light 3.8888249999999998 3.83632 3.94133 12 h after light 4.408135 3.9731 4.84317 4 h after dark 4.002393333333333 3.53088 4.2491 8 h after dark 2.5387866666666667 2.31735 2.80367 12 h after dark 1.67669 1.28364 2.31529